Home / 14,187.02-19,560.30-9,142.88

Finding the Fourth Proportional to 14,187.02, 19,560.30 and 9,142.88

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Solution

The fourth proportional to 14,187.02, 19,560.30 and 9,142.88 is: 12,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.02 : 19,560.30 = 9,142.88 : x
  2. Step 2: Convert to fraction form
    14,187.02/19,560.30 = 9,142.88/x
  3. Step 3: Cross multiply
    14,187.02x = 19,560.30 × 9,142.88
  4. Step 4: Simplify right side
    14,187.02x = 178,837,475.66
  5. Step 5: Solve for x
    x = 178,837,475.66/14,187.02
  6. Step 6: Final answer
    x = 12,605.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.